from flask import render_template, current_app, session, request, jsonify

from info import constants
from info.models import User, News, Category
from info.utils.response_code import RET
from . import index_blu

@index_blu.route('/news_list')
def news_list():
    cid = request.args.get("cid", "1")
    page = request.args.get("page", "1")
    per_page = request.args.get("per_page", "10")
    try:
        page = int(page)
        cid = int(cid)
        per_page = int(per_page)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数")

    filters = [News.status ==0]
    if cid != 1:
        filters.append(News.category_id == cid)
    try:
        paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page, per_page, False)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询错误")
    news_model_list = paginate.items  # 模型对象列表
    total_page = paginate.pages
    current_page = paginate.page
    news_dict_li = []

    for news in news_model_list:
        news_dict_li.append(news.to_basic_dict())
    data = {
        "total_page": total_page,
        "current_page": current_page,
        "news_dict_li": news_dict_li,
        # "user": user,  #   object对象，无法做json转换。
    }
    return jsonify(errno=RET.OK, errmsg="OK", data=data)

@index_blu.route('/')
def index():
    user_id = session.get("user_id",None)
    user = None
    if user_id:
        try:
            user = User.query.get(user_id)
        except Exception as  e:
            current_app.logger.error(e)

    news_list =[]
    try:
        news_list = News.query.order_by(News.clicks.desc()).limit(6)
    except Exception as e:
        current_app.logger.error(e)
    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_basic_dict())

    categories = Category.query.all()
    category_li = []
    for category in categories:
        category_li.append(category.to_dict())

    data = {
        "user": user.to_dict() if user else None,
        "news_dict_li": news_dict_li,
        "category_li" : category_li
    }
    return render_template("news/index.html",data=data)

@index_blu.route('/favicon.ico')
def facicon():
    return current_app.send_static_file("news/favicon.ico")


